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This paper proposes droop control for Multi-Level Virtual Conductor (MLVC). This control method aims at overcoming the problem that circulating current flows when MLVC constitutes a mesh connection. Generally, the voltage difference between the terminals of any conductor is zero volts. However, MLVC can keep the voltage difference between the converter terminals constant at a certain value. In this...
The Multi-level Virtual Conductor (MLVC) is a bidirectional DC-DC converter that has been controlled in a designated strategy so as to allow it to behave like a conductor has a voltage difference between its terminals. It is considered, in the MLVC, that both input and output of a bi-directional DC-DC converter are independent current sources. These current sources can be considered as a load or as...
A new control approach for bidirectional DC-DC (BDC) converter is proposed in this paper. This approach aims at controlling a BDC in such a way that makes it behaves like a multi-level virtual conductor. As a matter of fact, the voltage difference between the terminals of any conductor is zero volts. Conversely, the main target of the proposed control approach is to keep the voltage difference between...
In this paper, seamless model of bi-directional DC-DC converter which is applicable to bi-directional power transfer is proposed. Conventional modeling method of bi-directional DC-DC converter is complex, because different models are needed for different directions of power flow. On the other hand, seamless model can be applied for both directions of power flow. Seamless circuit model is expressed...
This paper proposes a simple current-sensorless MPPT with dc-dc boost converter for Photovoltaic battery chargers. The proposed tracker eliminates the use of the current sensor by using only the voltage sensor: The current sensor is substituted with a new quantity that employs both of the input voltage and the duty ratio of the converter. An empirical observation is used to develop a theoretical prove...
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